Fix my radio button in GUI (app designer)

I have a problem with selecting the buttons , like I want when I choose the 90 degree button it will not shows the other rotation. so when one button is clicked the other shoulb be unchecked.

[Rik]

The callback should check which of your polygons are visible and set their visibility to off. The easiest way to keep track is to store the states in a separate array.

[Adam Danz]

When a rotation option is selected you're creating a new object. Instead, you should update the object's coordinates so you're still working with 1 object.

It's like instead of moving a car to another parking space, you're just building a new one and now you have 2 cars which sounds pretty cool but inefficient.